（同济大学建筑工程系  上海 200092）
【提要】  通过上海旗忠网球中心预制预应力混凝土看台空间结构1∶15缩尺模型的施工全过程测试与有限元模拟分析，对该结构的施工关键技术进行了系统的试验与理论研究。研究表明，所采用的预制预应力混凝土空间结构施工技术是合理的；预制试件时须重视预应力筋孔道的定位及张拉端和固定端的混凝土浇筑质量，并保证有足够的张拉空间；应采用对称张拉的预应力施工方案，结构受力均匀，易满足设计和施工要求；按照建议的施工技术所建造的预制预应力混凝土空间结构具有良好的整体性能。
【关键词】  预制预应力混凝土  空间结构  施工技术  试验  有限元分析
Study on Construction Technology of Large Precast Prestressed Concrete Space Structure/Xue Weichen，Xu Zhuangtao，Jiang Dongsheng，Chen Yiyi （Department of Building Engineering，Tongji Univ.，Shanghai 200092，China）
Abstract:Based on fullrange test and FEM analysis on the construction of a model structure，which simulates the stand structure of Shanghai Qizhong tennis in the proportion of 1∶15，the experimental and theoretical studies on key construction techniques of the structure are carried out. The results indicate that the construction techniques applied in the structure are rational；the exact orientation of the prestressed tendon ducts and the good casting quality of concrete in the stretching and anchoring zone should be ensured；the distributions of stresses in the structure are of uniformity and the requirements of design and construction could easily be satisfied when the tendons are stretched symmetrically；the precast prestressed concrete spacial structure，which is constructed by using the techniques studied，has better performance.
Keywords:precast prestressed concrete；spacial structure；construction technique；test；FEM analysis
*上海市重点工程科研项目。